LM4842
Overview
The LM4842 is a monolithic integrated circuit that provides DC volume control, and stereo bridged audio power amplifiers capable of producing 2W into 4Ω (Note 1) or 2.2W into 3Ω (Note 2) with less than 1.0% THD+N. Boomer ® audio integrated circuits were designed specifically to provide high quality audio while requiring a minimum amount of external components.
- PO at 1% THD+N n into 3Ω (MH and LQ) n into 4Ω (MH and LQ) n into 8Ω (MT, MH, and LQ)
- Single-ended THD+N at 85mW into 32Ω
- Shutdown current (Shutdown Low) 2.2W(typ) 2.0W(typ) 1.1W(typ) 1.0%(typ) 0.2µA(typ) Features
- Stereo headphone amplifier mode that eliminates the Output Coupling Capacitors (patent pending)
- Advanced “click and pop” suppression circuitry
- Acoustically Enhanced DC Volume Control Taper
- 2 Channel Stereo Input MUX
- System Beep Detect
- Stereo switchable bridged/single-ended power amplifiers
